Cern-european Organization for Nuclear Research

European Organization for Nuclear Research

Pierre Jarron

Francis Anghinolfi

Jorgen Christiansen

The present invention discloses an apparatus for use in medical imaging including a readout circuit having an input for receiving a detection signal corresponding to a photon hitting a radiation detector, wherein the readout circuit is adapted to output, in response to receiving said detection signal, a pulse signal having a leading edge encoding a time-stamp of said photon and a width encoding the energy of said photon. A method of reading out detection signals from a radiation detector of a medical imaging apparatus is also provided.

Apparatus and method for medical imaging

A sensing arrangement for sensing charged particles and/or quanta of electromagnetic radiation has a sensor device () and amplifier circuitry (). The sensor device () provides a sensor signal to an imput mode (vin) of the amplifier () to cause the level at the amplifier output mode (vout) to change. A negative feetback device (T) responds to the change in level of the output node (Vour) to vary the feedback effect to increase the loop again of said amplifier circuitry (). A current mirror (TT) resets the input node (vin) to its initial level. Single particle and integrating sensor arrangements are disclosed.

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Saint Julien en Genevois, France

Pierre Jarron